Portion of a speaker



FIG. 1 is a perspective view of a portion of a speaker showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a side elevational view of one side thereof, the other side view being a mirror image thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a perspective view similar to FIG. 1 but showing the claimed portion in isolation without environmental structure; and,

FIG. 7 is a top plan view similar to FIG. 5 but showing the claimed portion in isolation without environmental structure.

The broken line showing of an upper portion of the speaker is shown for illustative purposes only and forms no part of the claimed design. 

The ornamental design for a portion of a speaker, as shown and described. 